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SN74BCT757N Fiches technique(PDF) 3 Page - Texas Instruments |
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SN74BCT757N Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 11 page SN74BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993 2−3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions (see Note 1) MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VOH High-level output voltage 5.5 V IIK Input clamp current −18 mA IOL Low-level output current 64 mA TA Operating free-air temperature 0 70 °C NOTE 1: Unused or floating inputs must be held high or low. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = −18 mA −1.2 V VOL VCC = 4.5 V, IOL = 64 mA 0.42 0.55 V II VCC = 5.5 V, VI = 7 V 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 μA IIL VCC = 5.5 V, VI = 0.5 V −1 mA IOH VCC = 4.5 V, VOH = 5.5 V 0.1 mA Outputs high 34 ICC VCC = 5.5 V, Outputs open Outputs low 77 mA ICC VCC 5.5 V, Outputs open OE and OE inactive 10 mA Ci VCC = 5 V, VI = 2.5 V or 0.5 V 6 pF Co VCC = 5 V, VO = 2.5 V or 0.5 V 4 pF † All typical values are at VCC = 5 V, TA = 25°C. switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Note 2) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX UNIT tPLH A Y 6.9 8.3 9.6 6.6 10.1 ns tPHL A Y 2.4 4.2 6 2 6.6 ns tPLH 2OE Y 11 14.8 17.9 10.8 19.7 ns tPHL 2OE Y 2.9 4.6 6.2 2.6 6.9 ns tPLH 1OE Y 11.4 13.9 16.1 10 18 ns tPHL 1OE Y 4.4 6.1 7.8 4 8.5 ns NOTE 2: Load circuits and voltage waveforms are shown in Section 1. |
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Description similaire - SN74BCT757N |
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